20'' government profile barrel

Its not something most people think about in the age of optics on all the things, but the longer distance between the rear sight and front sight post on a rifle-length barrel is a precision advantage. Mature byk memeli. In developing the USGI M4 carbine as one of the primary weapons for today s infantry, some modifications were performed to the original M16 platform to enhance the reliability of the shorter barreled carbines. In the world of small caliber high-velocity (SCHV) cartridges, like the 5.56, velocity is king. AR Uppers & Lowers, Rifle Accessories, Mil-Spec Parts | Aero Precision I originally built mine with a light 18 308Win barrel, but after some time with it, took everything apart and rebuilt it around a heavy 20 243Win barrel. Barrel Length: 20 in Barrel Profile: Government Gas System Length: Rifle Length Finish: Anodized Color: Black Included Accessories: None . Ballistic Advantage coats their extensions and barrels separately to ensure long-lasting torque values. This profile seems backward when you look at it. JP Bore Guide for 223 Cal: Raw Truth Review. Our Price: $115.00. Modern pencil/lightweight barrels, properly heat-treated and stress-relieved, arent as affectedbut bear in mind that ANY barrel will shift point of impact if it gets hot enough. Barrel customizations are also available. I totally agree that theres just something satisfying about a 20 AR. Though I probably would have done even better with something shorter and lighter, it was still respectable. Quantity: Sorry we are currently sold out. LE barrel they list theoretical maximum Rounds Per Minute at 750-850. I didnt realize youd been following that long. Del-Ton, Inc. offers a comprehensive selection of AR 15 barrels. Will definitely buy from BMC again. Barrels are parkerized with the manganese phosphate finish (Mil-Spec A-A-59267). Most AR barrels are sold with threaded muzzles to accept muzzle devices, the alternative is a barrel with a target crown, similar . However, just because its longer doesnt mean it has to feel like this. Some years ago he shared the story of the government profile barrel on AR15.com. Code: 1TG-UFH-GVPRKT-RKT106. It really is just a gentle push against the shoulder and makes for a fantastic experience for new shooters. Lets rewind the clock back to January of 2014. So they made only the front of the barrel thicker to increase strength. Reliable and durable. Well, it would be less than honest to say that my A4 semi-clone wasnt inspired by the original version of this blog. It is now a worldwide standard in the industry for a battle rifle. It was developed to add heat resistance and make the barrel more durable. To be honest, Ive never done a formal evaluation of the thing. For more information, check out privacy page. 2023 USA Carry LLC The Faxon pencil, or gunner profile, is more than adequate for an infantry or duty weapon in my humble opinion. Ive rung steel at 500 yards with it using my 432 ACOG. One of our technical specialists will then review your claim and contact you within 5-7 business days. Personally I hate the Government profile. I collected my brass for a year and have stored in a bin just waiting for me to get going. Lets get this out of the way, first. The most accurate rifles in the world cant outshoot inconsistent ammo. To ensure you have the best experience possible, this website uses cookies. Another great option is the hybrid profile, where the barrel starts thicker by the receiver and gets thinner towards the muzzle. But it doesnt handle poorly, either. Knowing that I wanted to prepare for the next match, I purchased the BCM 20 Government complete upper in May of 2014 and slapped the carry handle on the rear. The M4/A2 profile makes sense in a military context; you cant be giving soldiers a delicate rifle. The best group I ever shot with it was with ADI 69gr Outback, which came in just about 1 MOA at 100 yards with a 4x optic. Modern Series barrels feature QPQ Nitride finished M4 feed ramp extensions. Most of my ARs are either 16 or 18, but that is mostly a matter of me experimenting. Matt is the primary author and owner of The Everyday Marksman. Despite the humor and head shaking that is government acquisitions, the government profile isnt all bad. When you check either Colts or FNs specs on the Govt. I want to own an example of the type for recreational purposes, to dip my toe into local CMP/High Power matches, to run in it some 2 gun matches, and classes. BCM Standard 20" Government Profile Upper Receiver Group BCM MSRP: $620.40 Your Price: $510.40 (You save $110.00 ) (143 reviews) SKU: BCM-URG-GOV-20 Features: M4 Feed Ramp Barrel Extension M4 Feed Ramp Flat Top Receiver T-Marked Upper Receivers USGI 1/7 Twist Rates USGI 5.56 NATO Chambers Mil-Spec 11595E - Certified Barrel Steel (CMV) Ch Caliber: Thats much easier to work with. FN 20" government pro is the answer your seeking. Fantastic story! In fact, I think that perception was starting to change for a while, as I kept seeing more and more 20 build threads in the message boards. I wouldnt go that far, really. It doesnt. Quantity: We currently have 16 available. So about the only advantage of the A2 profile was to give the rifle a little more muzzle hang. A2 Style 20 Inch Government Profile Barrel This government profile barrel provides excellent velocity for 5.56 rounds, with a full 20 inch barrel and a 1:7 twist rate. The HBAR barrel profile is a thick-to-slightly-less-thick tapered design, thinning after the gas block. Prior to shipping, all BCM upper receiver groups are test fired for function, laser bore sighted with a Milspec carry handle for sight alignment within Mil-Specs, and then batch samples are test fired for accuracy. Accuracy has been great and the weight hasnt bothered me carrying it about. However, a heavy training and firing schedule may be a good reason to consider a thicker barrel profile to mitigate heat in the barrel. It was developed to add heat resistance and make the barrel more durable. I couldnt give you an accuracy estimate, though- I never really tested it for that. Eventually, all modern enthusiasts ask why that happened. He's a former military officer turned professional tech sector trainer. This profile seems backward when you look at it. $500.00 Save $20.01. Generally, if I can buy a completed upper receiver assembled by a known quality shop in the configuration Im looking for, then that is the easiest option by far. You see, not every rifle has to have a purpose. Yes, engineering developments have brought us some very capable bullet designs that work well from 16, 14.5, and shorter barrel lengths within a given range envelope, but the 20 will still do it better. As you can see in the video, a modern pencil barrel shifts far less than an older Colt pencil barrel. Though I feel like I was holding some pretty solid groups when I used this upper in an Appleseed event and 55gr bulk ammo. If your not in combat having to move quickly why not have a steadier barrel to shoot accurately ? I kept putting it off because I honestly wasnt sure where I wanted to take it. Mil-Spec F-Marked Forged Front Sight Bases. Sam Hoober is Contributing Editor for Alien Gear Holsters, where he writes about gun accessories, gun safety, open and concealed carry tips. Funny, when I was a youngster, 20 was considered a carbine. Of note: Took my youngest out to dial in and shoot his PA 1-6 ACSS optic last week and his first comment after putting 120 rounds of 62 grain M855 and 69 grain SMK down range was how impressive the lack of heavy recoil experienced out of his 20 inch BCM upper. Unfortunately, Daniel DefenseRead more , Nice build, looks great, and I do commend you and The New Rifleman for dedicating time to put out posts that show the how and why of rifle marksmanship. This build up was caused by a burr left from drilling/reaming the gas port. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. The USGI barrel profiles (often referred to as the Government Profile) enable the operator to carry their weapon for longer periods of time and deploy them faster than the heavier commercial H-Barrel counterparts. There are a number of takes on the bull barrel style, but all add up to more or less the same thing: a big, heavy barrel. Please view details for quantity available at the time of your order. I was actually going to cover it in an article about the M16A5 configuration, which is not an official designation and more of a concept. Please view details for more information. When I ordered the complete upper from BCM in May of 2014, I honestly didnt know what to expect. Im glad you liked it! Paired with a KAC M5 hand guard really rounds out the look. The simple truth here is that a 20 barrel is the optimum length for 5.56-based cartridges. Very nicely written. Maybe. The Mil-Spec grade steel gets its additional strength and rigidity from an increase in carbon and/or vanadium in the alloy. and count on it to run reliably? 20" length Government Profile Barrel 5.56 NATO chamber also works with .223 Rem Rifle length gas system.750" gas block journal 1:9 RH twist 4150 Chrome Moly Vanadium Steel Parkerized finish M4 extension Threaded Muzzle 1/2"x28 TPI THANKS FOR LOOKING! BCM, for example, makes their own A5-sizes receiver extension. For example, the long sight radius becomes a moot point once you mount optics. JavaScript seems to be disabled in your browser. This grade (CMV) of steel is a Mil-Spec steel used in the USGI M16 family of rifles; it is stronger and will last longer than the typical barrels offered in the commercial market. If youre training with your rifle or carbine or SBR a lot (as you should be) then its going to. A standard A2 Front Sight Base with sling swivel is fitted. The guys at InRange TV have a fantastic presentation on the topic. I dont think youd run into any problems testing it with a regular H-buffer, and then step upRead more , Yes, finally /joking! This 5.56 chambered 20 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel and comes with a pinned Front Sight Base and Delta Ring Assembly Kit. But those ounces are all on the front of the rifle, so it slows down the handling a bit in favor of stable marksmanship. If you live to mag dump, the HBAR makes a certain amount of sense, but the intended application is precision target shooters. They were so confident that they change the design of the barrels to be much thicker at the end so they wouldnt bend. Were I going into it now, Id probably be looking at the Centurion C4 rail or the BCM model. Jim loves anything that goes, 'boom' but . The average shooter is only going through a box or two at a time, a few times per year. Those practice sessions made up the earliest blog posts on the old site. Filter By . It has a Triangular end cap, and those types of handguards or rails are extremely difficult to find these days. barrel length affects bullet velocity, military .556 ammo has to be above a specified velocity when it impacts a target and at the specified penetration depth will start to tumble to produce its designed wounding characteristics, outside those parameters it produces a wound channel consistent with bullet diameter. The USGI 1/7 twist rate of all of the BCM barrels is the preferred twist rate by most professional infantryman. All of the BCM flat top uppers feature a USGI type laser etched T-marks to provide addressing for the remounting of tactical accessories such as optics, laser sights, etc. Even Eugene Stoner commented on their stupidity, of weighting down the front of the barrel. Barrel Extension in the rear with M4 feed ramps and a barrel extension ready to install into the receiver. The barrel is finished in Black Manganese Phosphate for protection against rust and corrosion. Here is a great clip that pretty much mirrors my experiences with government acquisitions. The organizational inertia was too strong and the contracts were already signed. I have no idea if anyone is still reading or responding to the thread in this article but I thank you for the article. But I did use this upper almost exclusively for three years in my marksmanship training. under the handguards. For example, I dont notice the length nearly as much on something like my 18 Faxon Gunner Barrel, which is almost as long but without the extra mass. You could/would get the rifle length gas system as well? To learn more, visit www.p65warnings.ca.gov. The upsides and downsides are the same as A2/HBAR profiles, but the purpose is different. . Its advantage is the extra heat resistance of yhe additional material. 20" 5.56 Government Rifle Length AR 15 Barrel, Modern Series Availability: In stock Rating: 4 Reviews Add Your Review $129.50 $185.00 Options Add Pinned Gas Block or Front Sight Base (Attached To The Barrel) Bolt Carrier Group Gas Tube Adjustable Lo-Pro Gas Block (Not Pinned Or Attached To Barrel) Add to Cart Details Its one of the reasons I run A5 kits on all of my ARs with collapsible stocks (including the one in this article). A .308 rifle with a 13 barrel can be more accurate than the same barrel at 20 (with environmental effects)Read more , As the article discussed barrel length I forgot to mention chamber cut and rifling twist rate also has effects accuracy. I hope you stick around for a while, and maybe even join us. This works to our advantage because buying bulk M193 is pretty cheap compared to heavyweight 69 and 77-grain ammunition. We experts thought this bending was from rough handling like during bayonet drills, etc., as an absence of any mid-barrel handguard damage in these rifles made one assume the fulcrum of such bending was the bayonet lug. It was taking place just a few months later in March. it is great to know a fellow gun nut agrees that such a vicarious project makes perfect sense. Put a KAC M5 RAS on it and it fit perfect. If you wanted a heavier barrel than a pencil, but not quite an A2/M4, this is the one to get. It comes down to your needs, really. AR15 barrels come with extension, and front sight base. Times, and perspectives,Read more . I was just shooting in from the prone position off of a pack, so there is always room to lock it into a rest and test it again.

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